A NIGHT in the pub watching the State of Origin rugby league game ended with a teenager shot dead and a man charged with his murder.

Police will allege that 18-year-old Jed Coates was fatally shot in the chest on his way home from the Colyton Hotel in Sydney’s west, where’d been involved in a fight during NSW’s Origin win.

Police and paramedics arrived at Nevada Avenue, Colyton, shortly before 11pm and gave the young man CPR before taking him to Westmead Hospital. He died a short time later.

Police say they arrested a 21-year-old Colyton man at a house on the same street as the shooting just after 3am.

He was charged with murder and appeared later at Mount Druitt Local Court.

Detective Inspector Barry Vincent alleged Mr Coates was gunned down following an earlier incident at the Colyton Hotel involving both men and a number of other people.

“It’ll be alleged that there has (then) been an altercation between the two persons here in the street,” he told reporters. “We believe an incident predicated what happened here in the street.” Det Insp Vincent would not confirm how many other people were there when Mr Coates was shot, but said police had received information from witnesses.

Neighbours reported hearing an argument in the street just before the incident.

Crystal Nikua, 32, said her daughter heard a loud noise outside but thought it was fireworks to celebrate NSW’s Origin series win over Queensland.

“We didn’t think anything of it and came outside and saw all the police cars,” she said.